Speman Forte by The Himalaya Drug Company

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Anxiety. Although there has been interest in using oral cowhage for anxiety, there is insufficient reliable information about the clinical effects of cowhage for this purpose.
• Erythema. Although there has been interest in using topical cowhage for erythema, there is insufficient reliable information about the clinical effects of cowhage for this purpose.
• Hyperprolactinemia. Although there has been interest in using oral cowhage for hyperprolactinemia, there is insufficient reliable information about the clinical effects of cowhage for this purpose.
• Myalgia. Although there has been interest in using topical cowhage for myalgia, there is insufficient reliable information about the clinical effects of cowhage for this purpose.
• Parkinson disease. It is unclear if oral cowhage is beneficial in patients with Parkinson disease. Details: Very small clinical studies in patients with Parkinson disease suggest that taking a specific cowhage seed extract standardized to 3.3% levodopa (Zandopa, formerly HP-200; Zandu Pharmaceuticals), or other cowhage products that contain levodopa 75-400 mg orally once daily for up to 12 weeks modestly improves Parkinson disease scores when compared with baseline (7020,7203). Two very small clinical trials enrolling a total of 26 patients with Parkinson disease suggests that taking a single dose of cowhage powder, providing levodopa 1000-2000 mg or 12.5-17.5 mg/kg, is similarly effective after 90 minutes when compared with prescription levodopa 200 mg or 3.5 mg/kg as a single dose, with or without carbidopa and benserazide (12232,97266). It is unclear how these products would compare if they provided similar amounts of levodopa, or if they were taken for an extended duration.
• Rheumatoid arthritis (RA). Although there has been interest in using topical cowhage for RA, there is insufficient reliable information about the clinical effects of cowhage for this purpose.
• Sexual desire. Although there has been interest in using oral cowhage to increase sexual desire, there is insufficient reliable information about the clinical effects of cowhage for this purpose. More evidence is needed to rate cowhage for these uses.

(Read more about COWHAGE)

There is insufficient reliable information available about the effectiveness of Hawaiian baby woodrose.

(Read more about HAWAIIAN BABY WOODROSE)

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Abdominal pain. Although there has been interest in using oral Indian snakeroot for abdominal pain, there is insufficient reliable information about the clinical effects of Indian snakeroot for this purpose.
• Anxiety. It is unclear if oral Indian snakeroot is beneficial in patients with anxiety. Details: A single, small, low-quality clinical study shows that taking Indian snakeroot crude root 300-2000 mg orally daily, or an Indian snakeroot extract (alseroxylon, Rauwiloid) 4-64 mg orally daily, for an average of 20 days reduces symptoms of anxiety when compared with baseline in patients with various psychiatric disorders, including schizophrenia, personality disorders, and psychoneurotic disorders. A moderate decrease in anxiety or complete remission occurred in 80% of patients taking the crude root, 78% of those taking the extract, and 79% of patients taking the constituent reserpine 0.75-14 mg (94330). The validity of this study is limited by the lack of a comparator group.
• Constipation. Although there has been interest in using oral Indian snakeroot for constipation, there is insufficient reliable information about the clinical effects of Indian snakeroot for this purpose.
• Epilepsy. Although there has been interest in using oral Indian snakeroot for epilepsy, there is insufficient reliable information about the clinical effects of Indian snakeroot for this purpose.
• Hypertension. It is unclear if oral Indian snakeroot is beneficial in patients with hypertension. Details: Preliminary, low-quality, clinical research in adults with hypertension shows that taking Indian snakeroot 200-400 mg orally daily for up to 3 months reduces systolic and diastolic blood pressure by averages of 21-27 mmHg and 11-14 mmHg, respectively, when compared with baseline (94332,94438,94331,94440). Some evidence suggests that taking crude Indian snakeroot 400 mg daily may be as effective as taking isolated reserpine 0.4 mg daily (94438). Some clinical trials have also studied a specific Indian snakeroot product (Serpina, Himalaya Drug Company) as 1-4 tablets daily for up to one year. However, the tablet strength was not reported (94331,94438).
• Insect bite. Although there has been interest in using oral Indian snakeroot for insect bites, there is insufficient reliable information about the clinical effects of Indian snakeroot for this purpose.
• Insomnia. Oral Indian snakeroot has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults with chronic insomnia shows that taking Indian snakeroot root extract 200 mg orally in a specific combination with valerian rhizome 200 mg and Tinospora cordifolia extract 200 mg for 21 days reduces sleep latency by 11 minutes and increases total sleep by 58 minutes when compared with the placebo run-in period (6051). It is unclear if this effect is due to Indian snakeroot, other ingredients, or the combination.
• Malaria. Although there has been interest in using oral Indian snakeroot for malaria, there is insufficient reliable information about the clinical effects of Indian snakeroot for this purpose.
• Psychosis. Although there has been interest in using oral Indian snakeroot for psychosis, there is insufficient reliable information about the clinical effects of Indian snakeroot for this purpose.
• Rheumatoid arthritis (RA). Although there has been interest in using oral Indian snakeroot for RA, there is insufficient reliable information about the clinical effects of Indian snakeroot for this purpose.
• Schizophrenia. Although there has been interest in using oral Indian snakeroot for schizophrenia, there is insufficient reliable information about the clinical effects of Indian snakeroot for this purpose. More evidence is needed to rate Indian snakeroot for these uses.

(Read more about INDIAN SNAKEROOT)

POSSIBLY EFFECTIVE

• Sexual dysfunction. Oral tribulus seems to improve sexual experience in females with hypoactive sexual desire disorder (HSDD) or sexual dysfunction. Some research also shows that oral tribulus improves sexual function in males. Details: Clinical research in premenopausal and postmenopausal patients with HSDD shows that taking tribulus 250 mg three times daily (Androsten, Herbarium) for 3 months improves overall satisfaction and lubrication, as well as pain, desire, sexual arousal, and ability to reach orgasm, when compared with placebo (92027,97331,97332). Other preliminary clinical research in females with HSDD shows that taking tribulus extract 7.5 mg daily for 4 weeks improves sexual desire, arousal, satisfaction, orgasm, pain, and lubrication when compared with placebo (92022). A nonblinded clinical study comparing tribulus dosing regimens shows that taking oral tribulus 280 mg, either once daily or in three divided daily doses, for 90 days results in similar improvements in sexual dysfunction, regardless of menopausal status. However, neither dosing schedule increases clitoral blood flow when compared with baseline (108551). Tribulus has also been studied in males. One clinical study in males with erectile dysfunction, with or without HSDD, shows that taking tribulus (Tribestan, Sopharma AD) 500 mg three times daily for 3 months improves sexual desire and intercourse satisfaction when compared with placebo (97330).

POSSIBLY INEFFECTIVE

• Athletic performance. Oral tribulus does not seem to improve athletic performance. Details: Small clinical studies in athletes show that taking tribulus orally, alone or in combination with other ingredients such as androstenedione, most often as 450-770 mg daily for 5-8 weeks, does not seem to enhance body composition or exercise performance when compared with placebo or a control group (7514,13255,92029,108552).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Angina. It is unclear if oral tribulus is beneficial for angina. Details: Preliminary clinical research shows that taking a tribulus extract orally might reduce symptoms of angina when compared with a control (3931).
• Atopic dermatitis (eczema). Oral tribulus has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Some preliminary clinical research shows that taking tribulus orally in combination with 9 other herbs (Zemaphyte) daily for 8 weeks reduces redness and skin lesions in adults and children with nonexudative atopic dermatitis (12627,12628). However, other research shows no effect (12630). It is unclear if these effects are due to tribulus, the other ingredients, or the combination.
• Bacterial vaginosis. Topical tribulus has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in patients with bacterial vaginosis shows that using a specific vaginal suppository (Forzajeh) containing tribulus, myrtle, fennel, and tamarind daily for 1 week is as effective as metronidazole vaginal suppository for improving vaginal discharge volume and odor, pelvic pain, cervical inflammation, and vaginal pH (100339). It is unclear if these effects are due to tribulus, the other ingredients, or the combination.
• Benign prostatic hyperplasia (BPH). Oral tribulus has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults with BPH shows that taking a combination supplement (Prostalyn, East India Pharmaceutical Works Ltd.) containing tribulus 600 mg and curry leaf (Murraya koenigii) 600 mg twice daily for 12 weeks improves prostate symptoms when compared to baseline, with no difference when compared to tamsulosin 400 mcg daily. This supplement also seems to reduce prostate volume by around 2 mL (92033).
• Cancer. Although there is interest in using oral tribulus for cancer, there is insufficient reliable information about the clinical effects of tribulus for this condition.
• Chronic fatigue syndrome (CFS). Although there is interest in using oral tribulus for CFS, there is insufficient reliable information about the clinical effects of tribulus for this condition.
• Diabetes. It is unclear if oral tribulus is beneficial for diabetes. Details: Preliminary clinical research in females with type 2 diabetes who are taking oral hypoglycemic agents shows that taking tribulus extract powder 500 mg twice daily for 3 months modestly reduces fasting glucose and postprandial glucose levels, but not glycated hemoglobin, when compared with placebo. However, the validity of these findings is limited by the difference in diabetes severity between groups at baseline (97327).
• Erectile dysfunction (ED). It is unclear if oral tribulus is beneficial for ED. Research is conflicting. Details: Clinical research in patients with ED shows that taking tribulus (Tribestan, Sopharma AD) 500 mg three times daily for 3 months does not provide a clinically beneficial improvement in erectile function when compared with placebo (97330). Other clinical research shows that taking tribulus 400 mg twice daily for 30 days does not improve erectile function when compared with placebo (92031). However, one preliminary clinical study in patients with partial androgen deficiency shows that taking tribulus 250 mg three times daily for 3 months improves erectile function when compared to baseline (92028). Tribulus has also been studied in combination with other ingredients. Preliminary clinical research shows that taking a combination supplement (Tradamix TX1000, Tradapharma Sagl) containing tribulus 450 mg, brown algae 300 mg, and chitosan 250 mg twice daily for 3 months improves sexual satisfaction, desire, ejaculation function, and sexual quality of life when compared with placebo in patients with mild-to-moderate ED (92030). It is unclear if these effects are due to tribulus, the other ingredients, or the combination.
• Exercise-induced muscle damage. It is unclear if oral tribulus is beneficial for exercise-induced muscle damage. Details: Clinical research in a small number of healthy, untrained males shows that taking tribulus 500 mg daily for 2 weeks prior to performing resistance exercise reduces markers of muscle damage, including creatine phosphokinase (CPK) and lactate dehydrogenase (LDH), but does not reduce levels of the inflammatory markers interleukin-6 (IL-6) or C-reactive protein (CRP), when compared with placebo (103236). However, another small clinical study in male CrossFit athletes shows that taking tribulus 770 mg capsules (Quamtrax Pharmaceuticals) daily for 42 days does not reduce CPK but does improve CRP and oxidant status when compared with placebo (111747). However, it is unclear whether any improvements are clinically significant. A very small crossover clinical study in trained male athletes shows that taking 20 mg/kg/day of tribulus in 3 divided doses 30 minutes before meals with 500 mL of water for 4 weeks does not reduce muscle soreness after intensive aerobic exercise when compared with placebo (111746).
• Gonorrhea. Although there is interest in using oral tribulus for gonorrhea, there is insufficient reliable information about the clinical effects of tribulus for this condition.
• Hypercholesterolemia. Although there is interest in using oral tribulus for hypercholesterolemia, there is insufficient reliable information about the clinical effects of tribulus for this condition.
• Hypertension. It is unclear if oral tribulus can lower blood pressure. Details: In patients with pre-hypertension, clinical research shows that taking powdered tribulus fruit 2 grams three times daily for 2 months reduces systolic and diastolic blood pressure by 6 and 5 mmHg, respectively, when compared with placebo (105245). It is unclear what effect Tribulus may have in patients with diagnosed hypertension.
• Kidney stones (nephrolithiasis). Although there is interest in using oral tribulus for kidney stones, there is insufficient reliable information about the clinical effects of tribulus for this purpose.
• Male infertility. It is unclear if oral tribulus is beneficial for male infertility; the available research is conflicting. Details: Case series suggest that taking a specific tribulus product (Tribestan, Sopharma) 250 mg three times daily for 30 days improves ejaculate volume, sperm concentration, and sperm motility in patients with infertility due to oligoasthenozoospermia (78865), and improves libido and erections in patients with primary hypogonadism (78868). Conversely, a small clinical study in patients with oligozoospermia shows that taking tribulus granules 6 grams daily for 60 days does not improve sperm count when compared with placebo (92032). In patients with idiopathic infertility, taking tribulus 250 mg three times daily for 3 months does not increase sperm concentration, sperm motility, serum testosterone levels, or luteinizing hormone levels (97328). The difference in these findings might be due to the small study sizes, as well as the variable etiology of infertility.
• Menopausal symptoms. Oral tribulus has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Clinical research shows that taking a combination product containing tribulus 40 mg, ginger, saffron, and Ceylon cinnamon (Aphrodit, Goldaru Company) twice daily for 4 weeks improves mental and physical symptoms during menopause, but not genitourinary symptoms, when compared with placebo (97326). It is not clear if this effect is due to tribulus, the other ingredients, or the combination.
• Osteoporosis. Although there is interest in using oral tribulus for osteoporosis, there is insufficient reliable information about the clinical effects of tribulus for this condition.
• Polycystic ovary syndrome (PCOS). Oral tribulus has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: One clinical study shows that taking tribulus extract (Tribulus forte, Mediherb, Integra Healthcare Ltd) 245 mg daily along with other ingredients and lifestyle modification during the follicular phase of the menstrual cycle for 3 months improves some symptoms of PCOS, including a 33% reduction in oligomenorrhea or amenorrhea and a 43-day reduction in the duration between menstrual cycles, when compared with lifestyle modification alone. Taking tribulus with other ingredients also improves quality of life by about 30% and reduces body mass index by 1 kg/m2 when compared with placebo. Although the conception rate increased 4-fold in patients taking the combination product, the live birth rate was similar to those taking placebo. (97216). It is unclear if these effects are due to tribulus, the other ingredients, or the combination.
• Premature ejaculation. Oral tribulus has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research shows that taking a combination product containing tribulus, 5-HTP, winter savory, and chanca piedra (EiacuMev, Farmaceutica Mev) daily for 3 months improves time to ejaculation by 30 seconds and reduces symptoms related to premature ejaculation when compared to control (97016). More evidence is needed to rate tribulus for these uses.

(Read more about TRIBULUS)

POSSIBLY SAFE ...when used orally and appropriately. Powdered formulations of cowhage seed that are standardized to provide levodopa 75-400 mg daily have been used with apparent safety for up to 20 weeks (7020,7203,97266).

POSSIBLY UNSAFE ...when the hair of the cowhage bean pod is used orally or topically. The bean pod hairs are strong irritants and can cause severe itching, burning, and inflammation (18).

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

(Read more about COWHAGE)

LIKELY UNSAFE ...when used orally (17,5301). The seeds of Hawaiian baby woodrose have effects similar to the hallucinogen lysergic acid diethylamide (LSD), including flashbacks and hallucinations. In one case, severe agitation led to death due to jumping from a high point (5301,97867,103857,103858,103860).

PREGNANCY AND LACTATION: LIKELY UNSAFE
when used orally (17,5301); avoid using.

(Read more about HAWAIIAN BABY WOODROSE)

POSSIBLY UNSAFE ...when used orally. Indian snakeroot contains small amounts of the drugs reserpine and yohimbine. Although most adverse effects to Indian snakeroot appear to be mild, higher doses can cause cardiovascular side effects including bradycardia and hypotension. Prolonged use can cause depression in some people (94330,94331,94332,94438,94440).

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using. The reserpine alkaloid constituents appear to cross the placenta and are excreted in breast milk (4260).

(Read more about INDIAN SNAKEROOT)

LIKELY UNSAFE ...when the spine-covered fruit is used orally. There have been reports of bilateral pneumothorax and bronchial polyp after oral consumption of the spine-covered fruit (818).

PREGNANCY: POSSIBLY UNSAFE
when used orally. Animal research suggests that tribulus might adversely affect fetal development (12674); avoid using.

LACTATION:
Insufficient reliable information available; avoid using.

(Read more about TRIBULUS)

ANESTHESIA Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, concomitant use of cowhage and anesthesia might increase the risk of arrhythmias.  Details Cowhage contains levodopa (7020,7205,46334,46336,94723,94724). Use of levodopa with cyclopropane or halogenated hydrocarbon anesthesia has led to arrhythmias. Other anesthetics have not been implicated (15). Use other anesthetics in patients taking cowhage or tell patients to stop taking cowhage at least 2 weeks before surgery.

ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, concomitant use of cowhage and antidiabetes drugs might increase the risk of hypoglycemia.  Details Animal research shows that cowhage might have hypoglycemic effects (7221).

ANTIPSYCHOTIC DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, use of cowhage might decrease the clinical effects of antipsychotic drugs.  Details Cowhage contains levodopa (7020,7205,46334,46336,94723,94724). Use of levodopa might counteract the antidopaminergic effects of antipsychotic medications (15).

GUANETHIDINE (Ismelin) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = D Theoretically, concomitant use of cowhage and guanethidine might increase the risk of hypotension.  Details Cowhage contains levodopa (7020,7205,46334,46336,94723,94724). Use of levodopa with guanethidine might cause additive hypotension (15); avoid using.

LEVODOPA Interaction Rating = Major Do not take this combination. Severity = Moderate •  Occurrence = Likely •  Level of Evidence = D Concomitant use can increase the risk of levodopa-related adverse effects.  Details Cowhage contains levodopa. Some cowhage products have been standardized to contain 75-400 mg of levodopa per dose (7020,7205,46334,46336,94723,94724).

METHYLDOPA (Aldomet) Interaction Rating = Major Do not take this combination. Severity = High •  Occurrence = Probable •  Level of Evidence = D Theoretically, concomitant use of cowhage and methyldopa might increase the risk of hypotension.  Details Cowhage contains levodopa (7020,7205,46334,46336,94723,94724). Use of levodopa with methyldopa might cause additive hypotension. In addition, methyldopa may inhibit peripheral decarboxylation of levodopa and increase levodopa levels in the central nervous system (15); avoid using.

MONOAMINE OXIDASE INHIBITORS (MAOIs) Interaction Rating = Major Do not take this combination. Severity = High •  Occurrence = Probable •  Level of Evidence = D Theoretically, concomitant use of cowhage and non-selective MAOIs might increase the risk of hypertensive crisis.  Details Cowhage contains levodopa (7020,7205,46334,46336,94723,94724). Use of levodopa with non-selective MAOIs might cause hypertensive crisis. However, this interaction has not been reported with MAO-B selective inhibitors such as selegiline (15).

TRICYCLIC ANTIDEPRESSANTS (TCAs) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, use of TCAs might reduce the levels and clinical effects of cowhage.  Details Cowhage contains levodopa (7020,7205,46334,46336,94723,94724). Use of TCAs might reduce the absorption of levodopa. Some case reports describe patients that developed hypertension and dyskinesia when taking both levodopa and TCAs (15).

(Read more about COWHAGE)

SEROTONERGIC DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, concomitant use may increase the risk for serotonergic adverse effects.  Details Hawaiian baby woodrose contains chemicals which might increase serotonin levels. Combining serotonergic drugs with Hawaiian baby woodrose might increase the risk of serotonergic side effects including serotonin syndrome and cerebral vasoconstrictive disorders (8056).

(Read more about HAWAIIAN BABY WOODROSE)

ANTICOAGULANT/ANTIPLATELET DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking Indian snakeroot might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.  Details Indian snakeroot contains small amounts of the drug yohimbine. In vitro research shows that yohimbine inhibits platelet aggregation (86773,86806,86835,86853).

ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, concomitant use of Indian snakeroot with antidiabetes drugs might increase the risk of hypoglycemia.  Details Animal research shows that Indian snakeroot lowers blood glucose levels (94344,94353). This effect has not been reported in humans.

ANTIHYPERTENSIVE DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = B Theoretically, concomitant use of Indian snakeroot and antihypertensive drugs might increase the risk of hypotension.  Details Indian snakeroot, which contains reserpine, can reduce both systolic and diastolic blood pressure (94328,94331,94332).

ANTIPSYCHOTIC DRUGS Interaction Rating = Major Do not take this combination. Severity = High •  Occurrence = Probable •  Level of Evidence = D Theoretically, concomitant use might increase the risk of adverse effects.  Details Concomitant use of neuroleptics with Indian snakeroot may potentiate the effects of these drugs, as well as the alkaloid constituents of Indian snakeroot (2,18).

BETA-BLOCKERS Interaction Rating = Major Do not take this combination. Severity = High •  Occurrence = Probable •  Level of Evidence = D Theoretically, taking Indian snakeroot with beta-blockers might increase the risk of bradycardia and/or hypotension.  Details Indian snakeroot contains small amounts of reserpine. Reserpine causes catecholamine-depletion (15). Concomitant use of Indian snakeroot and beta-blockers might increase the risk or bradycardia and/or hypotension.

CNS DEPRESSANTS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking Indian snakeroot might cause additive sedative effects.  Details Sedation and drowsiness have been reported in clinical trials using Indian snakeroot (94331,94332,94438,94440).

CYTOCHROME P450 2D6 (CYP2D6) SUBSTRATES Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, Indian snakeroot might inhibit CYP2D6 enzymes and reduce the metabolism of CYP2D6 substrates.  Details Indian snakeroot contains small amounts of the drug yohimbine. In vitro research shows that yohimbine inhibits CYP2D6 enzyme activity (23117).

DIGOXIN (Lanoxin) Interaction Rating = Major Do not take this combination. Severity = High •  Occurrence = Probable •  Level of Evidence = D Theoretically, taking Indian snakeroot with digoxin might increase the risk of bradycardia.  Details Bradycardia has been reported in clinical trials using Indian snakeroot (94331,94440). Concomitant use of digoxin with Indian snakeroot might potentiate this effect.

EPHEDRINE Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = D Theoretically, taking Indian snakeroot with ephedrine might alter the effects and side effects of ephedrine.  Details Indian snakeroot contains small amounts of reserpine. Reserpine reduces indirect sympathomimetic drug activity. However, another constituent of Indian snakeroot, yohimbine, has stimulant activity and may increase the risk of adverse effects with ephedrine (15,18).

LEVODOPA Interaction Rating = Major Do not take this combination. Severity = High •  Occurrence = Probable •  Level of Evidence = D Theoretically, taking Indian snakeroot with levodopa may reduce the effectiveness of levodopa.  Details Extrapyramidal motor symptoms and Parkinson-like symptoms have been reported in clinical trials using Indian snakeroot (94328,94332). Concomitant use of Indian snakeroot with levodopa may reduce the effectiveness of levodopa and increase extrapyramidal motor symptoms (15,18).

MONOAMINE OXIDASE INHIBITORS (MAOIs) Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking Indian snakeroot with MAOIs might cause additive effects.  Details Yohimbine, a constituent of Indian snakeroot, has MAO inhibitory effects. At high doses, yohimbine is a non-selective inhibitor of MAO (11,12).

STIMULANT DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, concomitant use might cause additive effects.  Details Yohimbine, a constituent of Indian snakeroot, has sympathomimetic effects and increases blood pressure in a dose-dependent manner. Theoretically, taking Indian snakeroot with stimulant drugs can have additive stimulant and hypertensive effects (11,12,105698).

TRICYCLIC ANTIDEPRESSANTS (TCAs) Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, concomitant use might alter the effects of Indian snakeroot and increase the risk of adverse effects.  Details A small clinical study in patients taking TCAs for at least 4 weeks shows that receiving doses of intravenous yohimbine, a constituent of Indian snakeroot, 2.5-20 mg daily for up to 7 days precipitates severe anxiety, agitation, and tremor (105881). Also, concomitant use of TCAs with Indian snakeroot may decrease the effects of other rauwolfia alkaloids (15).

(Read more about INDIAN SNAKEROOT)

ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Taking tribulus with antidiabetes drugs might increase the risk of hypoglycemia.  Details Clinical research shows that Tribulus can lower blood glucose levels in adults with type 2 diabetes who are taking antidiabetes medications (97327).

ANTIHYPERTENSIVE DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking tribulus with antihypertensive drugs might increase the risk of hypotension.  Details Animal research shows that tribulus can lower blood pressure by inhibiting angiotensin-converting enzyme (ACE) (12673). Tribulus has also demonstrated hypotensive effects in pre-hypertensive adults (105245).

LITHIUM Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = D Theoretically, tribulus might increase the levels and clinical effects of lithium.  Details Tribulus is thought to have diuretic properties (12681). Due to these potential diuretic effects, tribulus might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

(Read more about TRIBULUS)

General ...Orally, adverse effects to cowhage seem to be rare; however, a thorough safety evaluation has not been conducted. Topically, cowhage bean pod or seed may be unsafe.
Most Common Adverse Effects:
Orally: Diarrhea, flatulence, mucosal irritation.
Topically: Erythema, pruritus, rash.

Cardiovascular ...Orally, cowhage has been reported to cause palpitations (7021,7203)

Dermatologic ...Orally, ingestion of hairs from the bean pod or seed can result in significant mucosal irritation and should be avoided.
Topically, hairs on cowhage bean pod or seed can cause severe pruritus (6898). Symptoms include severe itching, burning, inflammation, and erythematous macular rashes (18,6898). Symptoms resolve spontaneously within several hours, but may also be relieved with antihistamines (6898). The hairs can be removed from the skin by washing, but the hairs can also be retained, and transferred to other people, in fabrics and carpets. Clothing and other materials that come in contact with cowhage hairs should also be thoroughly washed (6898).

Gastrointestinal ...Orally, cowhage has been reported to cause flatulence, diarrhea, and dry mouth (7021,7203). Orally, a specific powdered cowhage seed extract (Zandopa, formerly HP-200; Zandu Pharmaceuticals) has been reported to cause nausea, abdominal distention, and vomiting in clinical research when taken in amounts of 22.5-67.5 grams divided into 2-5 doses per day (7020).

Musculoskeletal ...Orally, dyskinesia has been reported in clinical research in about 3% of patients taking a specific powdered cowhage seed extract (Zandopa, formerly HP-200; Zandu Pharmaceuticals) 22. 5-67.5 grams divided into 2-5 doses daily (7020).

Neurologic/CNS ...Orally, cowhage has been reported to cause headaches (7021,7203). Orally, insomnia has been reported in clinical research in about 3% of patients taking a specific powdered cowhage seed extract (Zandopa, formerly HP-200; Zandu Pharmaceuticals) 22.5 grams to 67.5 grams divided into 2-5 doses daily (7020).

Psychiatric ...In a case report, cowhage caused an outbreak of acute toxic psychosis. Symptoms of psychosis included confusion, giddiness, agitation, hallucinations, and paranoid delusions. The cowhage-induced psychosis was successfully treated with intravenous chlorpromazine (7021).

Other ...Orally, cowhage has been reported to cause sweating and changes in urine color, (7021,7203). Theoretically, due to the levodopa constituent, cowhage is likely to cause the same adverse effects that have been attributed to purified, prescription levodopa. Some of these side effects include elevated liver enzymes, respiratory disturbances, urinary retention, muscle cramps, and priapism (15). However, these effects have not yet been reported for cowhage.

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General ...Hawaiian baby woodrose is generally regarded as unsafe for use. Any benefits of therapy may not outweigh the risk of toxicity. The number of seeds needed to produce adverse effects differs for each individual.
Most Common Adverse Effects:
Orally: Dizziness, fatigue, hallucinations, hypertension, mydriasis, paranoia, sweating, tachycardia.

Cardiovascular ...Orally, approximately four homogenized Hawaiian baby woodrose seeds have been reported to cause temporary blood pressure elevation (103857). In one 18-year-old male, consuming 15 Hawaiian baby woodrose seeds resulted in tachycardia and hypertension. The patient also used cannabis, but symptoms were thought to be related to Hawaiian baby woodrose (103858). The number of seeds needed to produce adverse effects differs for each individual. Additionally, the alkaloid and lysergic acid amide contents vary from batch to batch (103857).

Dermatologic ...Orally, Hawaiian baby woodrose seeds can cause sweating (5301).

Gastrointestinal ...Orally, four homogenized Hawaiian baby woodrose seeds have been reported to cause nausea and vomiting (103857). The number of seeds needed to produce adverse effects differs for each individual. Additionally, the alkaloid and lysergic acid amide contents vary from batch to batch (103857).

Neurologic/CNS ...Orally, four homogenized Hawaiian baby woodrose seeds have been reported to cause fatigue lasting for 2 hours and tremor of the hands lasting for about 9 hours in one person (103857). Weakness, vertigo, and heaviness in the legs have also been reported (103857). The seeds have also been reported to cause auditory hallucinations and altered visual perception (5301,103857,103860). The number of seeds needed to produce adverse effects differs for each individual. Additionally, the alkaloid and lysergic acid amide contents vary from batch to batch (103857). Lysergic acid amide 2-5 mg is enough to cause hallucinations, with effects lasting 4-8 hours (5301,5304,97867).

Ocular/Otic ...Orally, Hawaiian baby woodrose seeds can cause blurred vision, dilated pupils, and involuntary, rapid, rhythmic movement of eyeballs (5301,103857).

Psychiatric ...Orally, four homogenized Hawaiian baby woodrose seeds has been reported to cause difficulty expressing thoughts, fits of laughter, and paranoia in one person (103857). The seed has also been reported to cause mood elevation and anxiety (103857,103860). In an 18-year-old male, ingestion of 15 seeds resulted in erratic and bizarre behavior accompanying suicidal and homicidal ideation and depression. The patient also used cannabis, but symptoms were thought to be related to Hawaiian baby woodrose (103858). In one case report of a 29-year-old male, consuming an unknown quantity of soaked Hawaiian baby woodrose seeds and smoking cannabis resulted in severe agitation leading to a jump from a fourth-floor window and death (97867). In a 17-year-old female, ingestion of 6 seeds initially resulted in a euphoric and energetic mood, with increased socializing and school performance. The patient then developed problems with concentration, thinking, and sleep, with nightmares, anxiety, suspiciousness, and crying, resulting in hospital admission and treatment for psychosis with aripiprazole 10 mg daily and lorazepam as needed. Most symptoms resolved within 7 weeks; however, problems with concentration continued for several more weeks. Aripiprazole was discontinued 22 weeks after discharge (109536).
The number of seeds needed to produce adverse effects differs for each individual. Additionally, the alkaloid and lysergic acid amide contents vary from batch to batch (103857). Lysergic acid amide 2-5 mg is enough to cause hallucinations (97867).

(Read more about HAWAIIAN BABY WOODROSE)

General ...Orally, Indian snakeroot may be unsafe, particularly at high doses. Most adverse effects are thought to be from the constituents reserpine and yohimbine.
Most Common Adverse Effects:
Orally: Abdominal pain, bradycardia, congestion, diarrhea, hypotension, increased appetite, nightmares, sedation, weight gain.
Serious Adverse Effects (Rare):
Orally: Atrial fibrillation, convulsions, depression, myocardial infarction.

Cardiovascular ...Orally, Indian snakeroot has been associated with reports of bradycardia and mild hypotension. These adverse effects are thought to be related to the constituent reserpine (94331,94440). Adverse reactions to reserpine also include angina-like symptoms (94328). At high doses, adverse effects related to yohimbine, another constituent of Indian snakeroot, include hypertension, tachycardia, palpitations, myocardial infarction, and atrial fibrillation (3312,17465,86801,91521). A supplement containing Indian snakeroot and several other ingredients (Carditone, Ayush Herbs) has been associated with reduction in blood pressure and increase in serum potassium levels (102838).

Dermatologic ...Indian snakeroot contains small amounts of reserpine and yohimbine and may theoretically cause some of the adverse effects associated with these constituents. Orally, reserpine can cause facial flushing, skin rash, and itching (94328). Yohimbine may cause rash, erythrodermic skin eruption, and exanthema (3312,3971,86878,86896).

Endocrine ...Indian snakeroot contains small amounts of reserpine and may theoretically cause some of the adverse effects associated with this constituent. Orally, reserpine can cause galactorrhea and breast enlargement (275,94328).

Gastrointestinal ...Orally, Indian snakeroot has been associated with increased or decreased appetite, diarrhea, nausea, vomiting, and abdominal pain (94332,94438,94440). Yohimbine, a constituent of Indian snakeroot, has been associated with nausea, vomiting, increased salivation, diarrhea, and gastrointestinal distress (3970,17465,86780,86786,86804,86827,86896). Reserpine, another constituent of Indian snakeroot, may cause gastrointestinal irritation and activation of peptic ulcers (15,19).

Genitourinary ...Indian snakeroot contains small amounts of yohimbine and may theoretically cause some of the adverse effects associated with this constituent. Yohimbine may cause dartos contraction or decreased libido in some patients (86786,86882).

Hematologic ...Indian snakeroot contains small amounts of reserpine and yohimbine and may theoretically cause some of the adverse effects associated with these constituents. A case of drug-induced agranulocytosis has been reported following prolonged use of oral yohimbine (86877). Reserpine may cause thrombocytopenia (275).

Immunologic ...There is one report of a hypersensitivity reaction to yohimbine, a constituent of Indian snakeroot. Symptoms included fever, chills, malaise, itchy, scaly skin, progressive kidney failure, and a lupus-like syndrome (6169).

Musculoskeletal ...Orally, Indian snakeroot has been associated with muscle aches and cramps (94438).

Neurologic/CNS ...Orally, Indian snakeroot may cause headaches, feeling cold, dizziness, drowsiness, nightmares, and mild sedation (94331,94332,94438,94440). Indian snakeroot contains small amounts of reserpine and yohimbine and may theoretically cause some of the adverse effects associated with these constituents. Doses of reserpine of greater than 0.5 mg daily can increase the risk of side effects. In extremely large amounts, Parkinson-like symptoms, extrapyramidal reactions, and convulsions may occur (15,94328,94332). Orally, yohimbine has been associated with reports of tremulousness, head twitching, seizures, loss of consciousness, decreased energy, dizziness, vertigo, headache, feeling cold, flushing, diaphoresis, and paralysis (11,18,3312,3971,17465,86786,86801,86804,86827,86896).

Oncologic ...Indian snakeroot contains small amounts of reserpine and may theoretically cause some of the adverse effects associated with this constituent. Some preliminary research suggests a link between reserpine and an increased risk of breast cancer; but this has not been confirmed in further research (94328).

Psychiatric ...Orally, Indian snakeroot can cause emotional upset or depression, especially in people with prior episodes. This appears to be related to the constituent reserpine (94332,94438). One study shows the rate of depressive episodes is similar for patients taking Indian snakeroot and those taking reserpine (94438). Some research suggests that the risk of depression might increase with dose or the length of use. When taken for less than 40 days, depression did not occur in patients taking Indian snakeroot or reserpine (94330).
Indian snakeroot contains small amounts of yohimbine and may theoretically cause some of the adverse effects associated with this constituent. Orally, yohimbine may increase anxiety and impulsivity (17465,86784,86810).

Pulmonary/Respiratory ...Orally, Indian snakeroot can cause nasal stuffiness or congestion and shortness of breath (94330,94332,94438,94440). One study shows that Indian snakeroot may increase the risk for nasal congestion more than the constituent reserpine. (94438). Reserpine is also associated with rare reports of allergic reactions that can precipitate asthma (15,94328). Another constituent of Indian snakeroot, yohimbine, may cause bronchospasm, tachypnea, cough, sinusitis, and rhinorrhea (17465,86825,86850,94112). Excessive doses of yohimbine can cause respiratory depression (1118).

Renal ...Orally, Indian snakeroot may cause increased urination (94332).
Indian snakeroot contains small amounts of yohimbine and may theoretically cause some of the adverse effects associated with this constituent. A case of acute kidney failure related to yohimbine-induced systemic lupus erythematosus has been reported (6169).

Other ...Orally, Indian snakeroot has been associated with reports of weight gain (94438).

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General ...Orally, tribulus seems to be well tolerated.
Serious Adverse Effects (Rare):
Orally: Cases of liver and kidney injury, seizures, and chronic painful erection with impaired sexual function have been reported. Pneumothorax and bronchial polyp after consuming the spine-covered tribulus fruit have been reported.

Gastrointestinal ...Orally, tribulus can cause abdominal pain, cramping, nausea, vomiting, diarrhea, and constipation (92022,92027). However, in one study, the rates of these gastrointestinal complaints were similar for patients taking tribulus and those receiving placebo (92022).

Genitourinary ...In one case report, a patient taking two tribulus tablets (unknown dose) daily for 15 days presented to the local emergency department with a painful erection lasting 72 hours. The priapism was resolved with medical management; however, post-episode sexual function was impaired (92023).

Hepatic ...In one case report, a patient drinking tribulus water 2 liters daily for two days presented with lower limb weakness, seizures, hepatitis, and acute kidney injury. The patient's condition improved after hemodialysis and discontinuation of tribulus water (92069).

Neurologic/CNS ...Orally, tribulus has been reported to cause general excitation and insomnia. These symptoms were reversed upon discontinuation of the drug or decreasing the dose (78867). In one case report, a patient drinking tribulus water 2 liters daily for two days presented with lower limb weakness, seizures, hepatitis, and acute kidney injury. The patient's condition improved after hemodialysis and discontinuation of tribulus water (92069).

Pulmonary/Respiratory ...In one case report, a patient developed a bilateral pneumothorax after consuming the spine-covered fruit of tribulus (818). In another case report, a patient developed a polyp in the lobar bronchus of the right interior lobe due to the presence of a tribulus fruit spine (78852).

Renal ...In one case report, a patient drinking tribulus water 2 liters daily for two days presented with lower limb weakness, seizures, hepatitis, and acute kidney injury. The patient's condition improved after hemodialysis and discontinuation of the tribulus water (92069). In another case report, a healthy male taking one tribulus tablet (unknown dose) daily for a few months for bodybuilding purposes developed hyperbilirubinemia followed by acute kidney failure 2-3 weeks later. The patient was managed with intravenous fluids and a low-salt, low-protein diet (92025).

Other ...In one case report, gynecomastia was observed in a male weightlifter taking an herbal combination product containing tribulus. However, it is not clear if this adverse effect can be attributed to tribulus alone (78859).

(Read more about TRIBULUS)